Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
O	1.425	284.37500000000017	446.87500000000017	1.1125	1.7375	0.625	20250421_201035UTC_V00OS11.WAV
O	18.8	270.83127500000023	446.8727250000002	18.5	19.1	0.6000000000000014	20250421_201035UTC_V00OS11.WAV
O	37.825	54.168725000000194	203.1272750000002	37.2875	38.3625	1.0750000000000028	20250421_201035UTC_V00OS11.WAV